2869151536449 has 27 divisors (see below), whose sum is σ = 4555426680259. Its totient is φ = 1738845841920.

The previous prime is 2869151536411. The next prime is 2869151536453. The reversal of 2869151536449 is 9446351519682.

The square root of 2869151536449 is 1693857.

It is a perfect power (a square), and thus also a powerful number.

2869151536449 is a `hidden beast` number, since 2 + 8 + 6 + 9 + 1 + 51 + 536 + 4 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2522560298049 + 346591238400 = 1588257^2 + 588720^2 .

It is not a de Polignac number, because 2869151536449 - 2²⁷ = 2869017318721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2869151536469) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 55871617 + ... + 55922945.

Almost surely, 2^{2869151536449} is an apocalyptic number.

2869151536449 is the 1693857-th square number.

2869151536449 is the 846929-th centered octagonal number.

It is an amenable number.

2869151536449 is a deficient number, since it is larger than the sum of its proper divisors (1686275143810).

2869151536449 is an frugal number, since it uses more digits than its factorization.

2869151536449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102686 (or 51343 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 63.

The spelling of 2869151536449 in words is "two trillion, eight hundred sixty-nine billion, one hundred fifty-one million, five hundred thirty-six thousand, four hundred forty-nine".